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TRUSTED BY DULLES, VA HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon73
    Verified structural engineering services reviews

Find Structural engineers in Dulles

"Very, very disappointing experience; Lux replaced the foundation of my 1850 log cabin. The design was bad, the communication was bad, the execution was bad. Throughout the entire process, they were making mistakes. I now need to pay another company to fix the mess they left behind. I would strongly suggest not using this company!"

Don H on August 2024

LUX Foundation Solutions is a fully licensed and insured foundation repair, waterproofing, crawlspace repair and masonry service contractor. Providing services to a large part of central and Northern Virginia. With Combine Experience of over 25 years!

"Very, very disappointing experience; Lux replaced the foundation of my 1850 log cabin. The design was bad, the communication was bad, the execution was bad. Throughout the entire process, they were making mistakes. I now need to pay another company to fix the mess they left behind. I would strongly suggest not using this company!"

Don H on August 2024


Avatar for JES Foundation Repair

JES Foundation Repair

4.24(
338
)
Approved Pro

JES Foundation Repair

4.24(
338
)
Approved Pro
Customers say: Quality work
38 local quotes requested
32 years of experience

Established in 1993, JES stands as a trusted subsidiary of Groundworks, a distinguished family of companies renowned for delivering unparalleled solutions. From foundation repair, structural reinforcement, crawl space encapsulation, basement waterproofing, and concrete lifting, we provide comprehensive services tailored to meet your needs. With our coverage spanning across the state of Virginia and Maryland, we bring our local expertise closer to you. JES proudly holds accreditation from the Better Business Bureau, a testament to our unwavering commitment to excellence. Drawing from decades of collective experience, extensive industry knowledge, and ongoing specialized training, our dedicated team is poised to safeguard your residential property against water damage, concrete sinking, and foundation instability. At JES, we are not just builders; we are guardians of your peace of mind. Contact us today for a FREE estimate! 410516000653 (DC) | 50637 (MD) | WV027473 (WV)

"JES was very professional and easy to work with from the beginning to the end of our basement project. Eric was very knowledgeable, and exceedingly helpful in answering our questions and making us feel comfortable with the choices we made. The crew that did the work were quick, clean, and extremely efficient. We were very happy with everything they did!"

Andrea M on October 2025

Established in 1993, JES stands as a trusted subsidiary of Groundworks, a distinguished family of companies renowned for delivering unparalleled solutions. From foundation repair, structural reinforcement, crawl space encapsulation, basement waterproofing, and concrete lifting, we provide comprehensive services tailored to meet your needs. With our coverage spanning across the state of Virginia and Maryland, we bring our local expertise closer to you. JES proudly holds accreditation from the Better Business Bureau, a testament to our unwavering commitment to excellence. Drawing from decades of collective experience, extensive industry knowledge, and ongoing specialized training, our dedicated team is poised to safeguard your residential property against water damage, concrete sinking, and foundation instability. At JES, we are not just builders; we are guardians of your peace of mind. Contact us today for a FREE estimate! 410516000653 (DC) | 50637 (MD) | WV027473 (WV)

"JES was very professional and easy to work with from the beginning to the end of our basement project. Eric was very knowledgeable, and exceedingly helpful in answering our questions and making us feel comfortable with the choices we made. The crew that did the work were quick, clean, and extremely efficient. We were very happy with everything they did!"

Andrea M on October 2025


Exterior Waterproofing Experts

4.83(
24
)
Approved Pro

Exterior Waterproofing Experts

4.83(
24
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
19 local quotes requested

Exterior Waterproofing Experts is a Class A General Contractor in the state of Virginia since 1997. Our service protects your home against wet basements, water leaks, flooding, water seepage, foundation leaking, and wall seepage. We have been doing subcontract grading and drainage work for many years. We have completed many waterproofing contracts for residents of Fairfax County, including: Fairfax, Alexandria, Arlington, McLean, Great Falls, Potomac, and Vienna, Virginia (VA). We are now offering to work directly for clients, passing the savings on to the homeowners. It is our belief that water problems are best solved from the outside before water gets into your home.

"My basement had mold and evidence of water damage in July/August, and I was referred to Exterior Waterproofing Experts. The majority of the mold was on the side of my house, but the salesperson made a strong pitch about the need to waterproof the front of my home by digging up the garden down to the foundation. My wife was largely convinced, so we went ahead with the $8000 project. Six months later, the insulation behind the waterproofed front of the house is sopping wet. When the salesperson came back to my home to take a look, his explanation was that the water probably came up through the floor. His words were along the lines of "99% of the time the water comes up through the front." At this point, I feel like I have an expensive solution to a problem I didn't really have."

Ben W on March 2021

Exterior Waterproofing Experts is a Class A General Contractor in the state of Virginia since 1997. Our service protects your home against wet basements, water leaks, flooding, water seepage, foundation leaking, and wall seepage. We have been doing subcontract grading and drainage work for many years. We have completed many waterproofing contracts for residents of Fairfax County, including: Fairfax, Alexandria, Arlington, McLean, Great Falls, Potomac, and Vienna, Virginia (VA). We are now offering to work directly for clients, passing the savings on to the homeowners. It is our belief that water problems are best solved from the outside before water gets into your home.

"My basement had mold and evidence of water damage in July/August, and I was referred to Exterior Waterproofing Experts. The majority of the mold was on the side of my house, but the salesperson made a strong pitch about the need to waterproof the front of my home by digging up the garden down to the foundation. My wife was largely convinced, so we went ahead with the $8000 project. Six months later, the insulation behind the waterproofed front of the house is sopping wet. When the salesperson came back to my home to take a look, his explanation was that the water probably came up through the floor. His words were along the lines of "99% of the time the water comes up through the front." At this point, I feel like I have an expensive solution to a problem I didn't really have."

Ben W on March 2021


Kamran Ohi P E

4.82(
155
)
Approved Pro

Kamran Ohi P E

4.82(
155
)
Approved Pro
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
58 local quotes requested

Small business, self employed, use subcontractors that I can trust, minimum consultation and visit fee $295. That includes, site visit, inspection, and a verbal on site report and follow up with contractors as needed . The fee for site visit and inspection is a flat fee, basically it is the charge to drive to your location and provide a verbal report. This fee does not include a written formal report. A written report is approximately an additional $300. I work evenings and weekends as needed, structural, architectural and mechanical design, inspections and reports, fronsic, expert witness. Please contact by phone or email: [email protected]. I will be on Vacation from July 9th till July 25th

"Kamran was easy to coordinate with and schedule the inspection. He was prompt and thorough with his review. His write-up was completed in a couple of days without any follow-up being required."

Andrew C on May 2025

Small business, self employed, use subcontractors that I can trust, minimum consultation and visit fee $295. That includes, site visit, inspection, and a verbal on site report and follow up with contractors as needed . The fee for site visit and inspection is a flat fee, basically it is the charge to drive to your location and provide a verbal report. This fee does not include a written formal report. A written report is approximately an additional $300. I work evenings and weekends as needed, structural, architectural and mechanical design, inspections and reports, fronsic, expert witness. Please contact by phone or email: [email protected]. I will be on Vacation from July 9th till July 25th

"Kamran was easy to coordinate with and schedule the inspection. He was prompt and thorough with his review. His write-up was completed in a couple of days without any follow-up being required."

Andrew C on May 2025


Avatar for PermitCare LLC

PermitCare LLC

No reviews yet

PermitCare LLC

No reviews yet
Free onsite estimate

PermitCare provides full range of permit expediting services for all types of Building and Construction around DMV areas. Our team can process your online permit (ePermit) application in other USA Jurisdictions without physical contact. Our permit expediters team consists of licensed architects, and professional engineers who are experienced to work with city/county approval authorities to quickly get your permits approved.

PermitCare provides full range of permit expediting services for all types of Building and Construction around DMV areas. Our team can process your online permit (ePermit) application in other USA Jurisdictions without physical contact. Our permit expediters team consists of licensed architects, and professional engineers who are experienced to work with city/county approval authorities to quickly get your permits approved.


Avatar for Lopez Architecture

Lopez Architecture

No reviews yet

Lopez Architecture

No reviews yet
4 years of experience

Free Phone calls | $100 per home visit. Pablo Lopez is a licensed architect here in Springfield, VA who has a full time job as an architect. During my free time, I give architecture advice to homeowners who are looking to do any kind of renovations in their Northerm Virginia home. Bathrooms, kitchens, basements, living areas, small/large areas, corners, open concepts, furniture and landscaping. I help homeowners bring up the best of their homes with the least amount of investment. I understand the dificulties of overtaking renovations. Not only the economical burden but also the amount of time and energy required. I really want to help you make the most out of your budget and resources. So you can improve your home without breaking the bank. Together, we will look for all the options and will help you find the most cost-effective project that is right for you. I will also help you find the contractors in your area that will get the job done for you, in the time and money that works best for you. Please, call me for a free consultation. I am looking forward to hearing from you.

Free Phone calls | $100 per home visit. Pablo Lopez is a licensed architect here in Springfield, VA who has a full time job as an architect. During my free time, I give architecture advice to homeowners who are looking to do any kind of renovations in their Northerm Virginia home. Bathrooms, kitchens, basements, living areas, small/large areas, corners, open concepts, furniture and landscaping. I help homeowners bring up the best of their homes with the least amount of investment. I understand the dificulties of overtaking renovations. Not only the economical burden but also the amount of time and energy required. I really want to help you make the most out of your budget and resources. So you can improve your home without breaking the bank. Together, we will look for all the options and will help you find the most cost-effective project that is right for you. I will also help you find the contractors in your area that will get the job done for you, in the time and money that works best for you. Please, call me for a free consultation. I am looking forward to hearing from you.


We are a full service company that can handle any day to day project to major renovations, We specialize in waterproofing, window washing and power washing.


MT Engineering Services

No reviews yet

MT Engineering Services

No reviews yet

Our engineering firm specializes in providing professional Civil Engineering services in both the public and private sectors for construction and development projects including Geotechnical Eng., Pavement Eng., and Construction Materials Testing and Inspection. MTES provides tailored geotechnical exploration and investigation services to our clients designed to fit the need and scope Our services include: Geotechnical Investigations Foundation inspection and repair Deep Foundation Design for Bridges, High-Rises, and other Structures Slope Stability Analyses Geotechnical Instrumentation Structural design and inspection Observation and Testing of Compacted Fill and (Site) Earthworks Observation and Logging of Drilled Shaft Excavations and Construction Coordination and Implementation of Full-Scale Shaft Load Testing Observation of Pile Foundation Systems Vibration Monitoring Peer Reviews

Our engineering firm specializes in providing professional Civil Engineering services in both the public and private sectors for construction and development projects including Geotechnical Eng., Pavement Eng., and Construction Materials Testing and Inspection. MTES provides tailored geotechnical exploration and investigation services to our clients designed to fit the need and scope Our services include: Geotechnical Investigations Foundation inspection and repair Deep Foundation Design for Bridges, High-Rises, and other Structures Slope Stability Analyses Geotechnical Instrumentation Structural design and inspection Observation and Testing of Compacted Fill and (Site) Earthworks Observation and Logging of Drilled Shaft Excavations and Construction Coordination and Implementation of Full-Scale Shaft Load Testing Observation of Pile Foundation Systems Vibration Monitoring Peer Reviews


Zign Consulting

5.00(
12
)

Zign Consulting

5.00(
12
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are structural Engineers, our expertise include new building design, addition. Alteration, deck construction and underpinning of foundation and related works. We also provide inspections and permitting services Minimum Consultation fee including site visit is $400.00. This fee includes on site verbal finding and recommendation. For a written report signed and sealed by Professional Engineer, we charge additional fee starting from $500.00depending on scope of work. Structural design and drawing preparation fees vary based on the scope of work. We prepare permit ready drawings per the jurisdiction code requirement. We also provide permit expediting service for additional fee.

"Prior to any demolition work, I called on Zign Consulting to help me figure it out whether it would be simple or complicated to remove two walls that were separating the kitchen and living space. I really appreciated Sit's communication and responsiveness throughout; the day of the site visit she inspected the first floor and basement and provided sound advice. Based off of her recommendations, I removed the two walls without any issue and am currently enjoying my new open floor plan. I am happy to support a woman-owned, woman-run business and will call upon Sit and her team again for future projects."

Sandi T on February 2021

We are structural Engineers, our expertise include new building design, addition. Alteration, deck construction and underpinning of foundation and related works. We also provide inspections and permitting services Minimum Consultation fee including site visit is $400.00. This fee includes on site verbal finding and recommendation. For a written report signed and sealed by Professional Engineer, we charge additional fee starting from $500.00depending on scope of work. Structural design and drawing preparation fees vary based on the scope of work. We prepare permit ready drawings per the jurisdiction code requirement. We also provide permit expediting service for additional fee.

"Prior to any demolition work, I called on Zign Consulting to help me figure it out whether it would be simple or complicated to remove two walls that were separating the kitchen and living space. I really appreciated Sit's communication and responsiveness throughout; the day of the site visit she inspected the first floor and basement and provided sound advice. Based off of her recommendations, I removed the two walls without any issue and am currently enjoying my new open floor plan. I am happy to support a woman-owned, woman-run business and will call upon Sit and her team again for future projects."

Sandi T on February 2021


Avatar for Rinker Design Associates, P.C.

Rinker Design Associates, P.C.

No reviews yet

Rinker Design Associates, P.C.

No reviews yet
43 years of experience

Transportation/Utility Design, Traffic, Land Development and Planning, Surveying, Right-of-way Acquisition, Environmental, Construction Engineering and Inspection, Structural, Litigation Support

Transportation/Utility Design, Traffic, Land Development and Planning, Surveying, Right-of-way Acquisition, Environmental, Construction Engineering and Inspection, Structural, Litigation Support

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Structural Engineering questions, answered by experts

Precast concrete can be reinforced with rebar, wire mesh, or other materials to improve its strength and add stability. Precast concrete for large construction projects is often pre-stressed as well for greater structural strength. Reinforced concrete is durable and strong, making it an ideal choice for many construction projects.

The easiest way to tell if a wall is load bearing is to check if it’s an exterior wall or if it runs perpendicular to the joists above and below it (or parallel to beams). Exterior walls are almost always load-bearing, and walls that run under beams or parallel to them are also usually load-bearing. There are exceptions to these rules, and walls that don’t fit into these categories can still be load-bearing. If you’re unsure, hire a structural engineer to look at your home to assess whether or not the wall is structural.

According to the Earthquake Country Alliance—a public and private alliance in California that works to improve earthquake and tsunami readiness—reports that unreinforced masonry, such as stone, bricks, and hollow clay tiles, is more susceptible to earthquake damage. The mortar between bricks isn’t as stable as other building materials and methods.

Yes. Foundation walls are always load-bearing.

The essential difference between an architect and an engineer is that architects typically focus more on the aesthetic design of buildings, although not without consideration for the structural integrity of the building. Engineers focus more on the structural, technical, and practical aspects of whether and how an architectural design can be built as drawn. You may need to hire both types of professionals if you’re designing and building a new home.

The Dulles, VA homeowners’ guide to structural engineering services

From average costs to expert advice, get all the answers you need to get your job done.